Nitrating apparatus



G. JUER. NITRATING APPARATUS. APPLiCATION FILED JULY 1,1920.

Patented oat. 10,1922

2 SHEETS-SHEET I.

G. JUER.

NITRATING APPARATUS.

APPLiCATION FILED JULY 1. I920.

1,431,161 Patented Oct. 10, 1922.

2 SHEETS-SHEET 2.

h/tar,-

Patented a. m, i922.

ca rn are GEORGE J UER, OF PHILADELPHIA, PENNSYLVANIA.

NITRATING APPARATUS.

Application filed July 1, 1920. Serial No. 893,402.

To all whom it may concern:

Be it known that I, GEORGE J van, a citizen sylvania, have invented certain new and.

useful Improvements in Nitrating Apparatus (for which I have filed an application in Hungary Nov. 18, 1916), of which the following is a full, clear, and exact description. q

The object of the invention is an arrangement for the nitration of cotton, by which all operations are accomplished in a purely mechanical way and consequently the labor and power consumption reduced. At the same time the operation is made more hygienic throughout and produces with better results a more uniform product.

The nature of the invention is that a. number of nitrating pots in which one immerses each time the whole charge which a centrifuge can dispose of. for the separation of the acid, are arranged in a circle on a turn table and by turning the latter by mechanical means are advantageously brought under the acid measuring tanks in pairs and filled. then brought under a pair of agitators. thereupon being moved further around the circle, different pots being brought under the measuring tanks and the others being emptied by tilting the contents into the centrifugal. During the interval between the agitation and the emptying the nitration 'takes place.

In the drawings Fig. 1 shows a vertical section through the nitrating apparatus; Fig. 2shows the plan; Fig. 3 shows to a larger scale the tilting apparatus and Fig. 4 shows the vapor exhausting system.

The apparaLus consists of a turntable (a) in the center of which a strong journal b is fastened by means of a base plate and an-' chor bolts to a pedestal. The journal. fits in an easy moving sleeve (d) which has a ribbed disc (e). The disc is joined by radiating transversals (f), Fig. 2, to a rim built of structural steel on which the nitrating pots are placed, tiltable in supports. The rim is supported by conical wheels (3') equally spaced, and carried by the table, and which run on a conical track built of machined segments. The slope of the track is'so calculated as to avoid a sliding friction. The segments are fastened to the foundation in a simple manner and therefore are easily changeable. A U shaped (channel) iron (9) Fig. 1, and also the gearwheel (m) with internal teeth and which serves to revolve the turntable, are fastened to the turntable and produce the stiffness of the structure.

A vertical shaft has a pinion (n) which meshes with the gear wheel (m) on one end while on the other end it has a bevel gear and clutch connection (not shown) with a horizontal shaft 2) which receives its rotation from the main shaft (9) through bevel gears. This main shaft 9 is driven through bevel gears from the driving shaft r with tight and loose pulley and belt shifter by which it is rendered active and inactive.

The horizontal shaft (1)) drives the shaft (8) which drive the agitators. The latter move up and down in a familiar manner and at the same time revolve the adjustable paddles (t), Fig. 1, which dip into the nitrat-' ing pots and agitate the cotton and after a sufficient agitation are pulled out of the pots. These agitators which I prefer to use form the subject-matter of a co-pending application Serial No. 393.403. filed'July 1, 1920.

The horizontal shaft (1)) further transmits its motion through bevel gears and reversible controlling clutch devices (not shown) to the vertical shafts and these drive the tiltingarrangement consisting of worm and worm wheel 0-71) for emptying the mass as they are brought by the turntable before the acid centrifugal (w) into which they are to be emptied and for tilting the pots back into position. The complete worm drive on the support of the nitrating pot is equip ed with a cotter in (m) in the' spindle. X shift-able shaft y) carrying a gear keyed to and slidable thereon which is in mesh with a gear upon the vertical shaft (1:) has a fork (y) whichby shoving inward can be coupled to the cotter pin (an), making a sort of universal coupling. By operating the reversing device between shaft (1)) and the shafts (u) (not shown) the rotation of the shaft (to) and also of the shaft (y) can be reversed when the tilted pot should again be set upright. By pulling out the fork (y) the connection to the worm drive' may be broken. A shaft (1 is provided for each pot and moves with the turntable. The gears on these shafts are successively brought into mesh ,with the gears on the ends of the shafts .slncetwo pots are emptied at once, the

table will be moved each time a distance till I centrifugal covers corresponding to two pots, the disconnection of each fork (3/) preventing any movement of the pot due to the tem orary meshing of the gears on shafts (3 in as?1n)g ts u The empty pots can with this arrangement, by turning the turntable, be moved on and new ones brought into position to be emptied. Every nitrating pot is kept tightly closed with a lid h')'Fig. 1., hanging on chains, and when tilting the pot this lid is lifted and replaced when the pot is returned to upright position.

The acid centrifugals (w) are during filling covered with a hood (2) into which are built funnels (2'). These are counterbalanced so that they may easily be swung upon a shaft (2 and lowered into a it (2 which can be drained, whenever t e (10') must be opened or closed and when the centrifugals are started after being filled.

The turntable is enclosed, with the exception of that part where the two pots tilt into the centrifugals, by a circular tunnel like arrangement, in which the outside walls (2) are set between the supports (1), while inside of these walls circular dividing rings (3, 3') are provided. One of these rings is fastened on the top platform (4) and dips into a trough filled with water, which trough is fastened to and stifi'ens the turntable, while the other ring (3') is fastened to the turntable (a) and dips into a stationary trough filled with water and fastened on the foundation, thus making two hydraulic joints. This method makes possible the effective exhausting of. the acid fumes, which' pass through the pipes (5) Fig. 4, and through the vertical pipes(6) inside the hollow journal (6) and into the lead pipe (7) to the exhauster. The agitators are provided with special ing funnels and the centrifugals have separate exhauster s.

In order to stop the turntable automatically after each forward movement to empty the two nitrating pots, it is provided with an automatic stopping-arrangement (8) of suitable construction.

Immediately after emptying, the turntable is turned the distance taken up by two pots in the direction of the arrow Fig. 2. The now empty pots take up the space between the centrifugals and the agitators and can be filled with acid. In front of the centrifugals are again some full 0ts. After emptying these into the centrifugal the turntable is again turnedas before. The

two intermediate. pots which were filled with acid now come under the agitators.

After finishing the centrifuging the drive of the turntable isstarted by means of a clutch lever, while the stopping automatically follows.

exhaust-.

The control devices for the turntable, the agitators and the pot tipping devices may be provided with suitable interlocking mechanism (not shown) by which the table cannot be rotated while the agitators or tip-.

table is kept in motion until. the burning pot comes under the agitator and by bringing this into action the fire can be smothered.

claim;

1. Nitratingapparatus comprising a rotary table, a plurality of nitrating pots arranged on the table around its peripheral portion, means for imparting to the table rotary increments of movement, a centrifuge arranged adjacent the table to receive the contents of a nitrating pot opposite it when the table is at rest, an acid filling tank arranged adjacent the path of movement of the pots with the table and at a distance from the centrifuge equal to the increment of movement of the table, a mechanical agitator arranged above the of the pots with the table but at a distance from the acid tank equal to a multiple of the increment of movement'of the table.

2. Nitrating apparatus comprising a rotary table, a plurality of nitrating pots arranged on the table around its peripheral portion, means by which intermittent r0- tary increments ofmovement may be imparted to the table, a centrifuge arranged adjacent the table to receive the contents of a nitrating pot opposite it when the table is at rest, means for recharging the pots after an increment of movement away from the centrifuge, means for agitating the contents of the pots after another increment of movement away from the centrifuge.

3. Nitrating apparatus comprising a r0- taryitable, a plurality of nitrating pots arranged on the table around its peripheral portion, means by which intermittent rotary increments of movement may be imparted to the table, a centrifuge arranged adjacent the table to a nitrating pot opposite it when the table is at rest, and means for agitating the contents of the pots when recharged.

4. Nitrating apparatus comprising a turntable, a plurality of nitrating pots arranged on theturntable around its peripheral portion, a housing surrounding the turntable and pots, a circular partition wall depending from the housing toward the turntable wlthin the row of pots, a circular liquid channel-on the up er face of the turntable into which the \val extends and in which it runs, means leading to the chamber surroundin the pots for removing the fumes, a centri ige into which the pots can be emppath of movement.

receive the contents of tied in turn, and means for agitating the contents of the pots when refilled.

5. Nitrating apparatus comprising a turntable, means for imparting to the turntable desired increments of rotary movements, a pluralit of nitrating pots arranged on the turntab e around its peripheral portion, a housing surrounding the turntable and pots,

means for removing the fumes from thehousing, a device into which the pots can be emptiedin turn, and means for agitating the contents of the pots when refilled.

6. Nitrating apparatus comprising aturntable, a receptacle disposed at one side of the turntable, a plurality of nitrating pots arranged on the turntable around its peripheral portion and mounted for tipping to pour their contents into the receptacle when adjacent thereto, means for giving said turntable increments of rotary movement, and means for agitating the contents of the pots when refilled.

7. Nitrating apparatus comprising a turn table, a receptacle disposed at one side of the turntable, a plurality of nitrating pots arranged on the turntable around its peripheral portion and mounted for tipping to vpour their contents into the receptacle when adjacent thereto, means for giving said turntable increments of rotary movement, means for removing the fumes emitted by the pots, and means tor agitating the contents of the pots when refilled.

8. Nitratin apparatus comprising a turntable, means or imparting to the turntable rotary increments of movement, a plurality of pots arranged on the turntable around its peripheral portion, a housing for substantiallyenclosing said turntable and having a depending circular wall between the pots and the axis of rotation of the turntable, a

liquid trough carried by the table and into which the circular wall extends, a wall de pending from the table, a liquid trough in the housing and into which the last named wall extends, and means for removing the of pots arranged on the turntable around its .peripheral portion. a housing for substantially enclosin said turntable and having a depending circular wall between the pots and the axis of rotation of the turntable, a liquid trough carried by the table and into which the circular wall extends. a wall depending from the table. a liquid trough in the housing and into which the lastnamed wall extends, means for removing the fumes from the chamber in which the pots move, a centrifuge arranged adjacent the table into which the contents of the pots may be discharged, in succession, and means for agitating the contents of the pots when refilled.

10. Nitrating apparatus comprising a rotary table, a plurality of nitrating pots arranged on the table around its peripheral portion, and tiltable to discharge their contents to one side of the table, means for imparting to the table rotary increments of movement, a centrifuge arranged at one side of the table to receive the contents of the pots when tilted. means by which the pots can be tilted to discharge their contents into the centrifuge when brought opposite thereto, and means for agitating the contents of the pots after they are recharged.

In witness whereof, I hereunto subscribe my signature.

GEORGE JU ER. 

